Import Question JSON

Current Question (ID: 18395)

Question:

$\text{The characteristics associated with adsorption are:}$ $1. \Delta G, \Delta H, \text{ and } \Delta S \text{ are all negative.}$ $2. \Delta G \text{ and } \Delta H \text{ are negative, but } \Delta S \text{ is positive.}$ $3. \Delta G \text{ and } \Delta S \text{ are negative, but } \Delta H \text{ is positive.}$ $4. \Delta G \text{ is negative, but } \Delta H \text{ and } \Delta S \text{ are positive.}$

Options:

1. $\Delta G, \Delta H, \text{ and } \Delta S \text{ are all negative.}$
2. $\Delta G \text{ and } \Delta H \text{ are negative, but } \Delta S \text{ is positive.}$
3. $\Delta G \text{ and } \Delta S \text{ are negative, but } \Delta H \text{ is positive.}$
4. $\Delta G \text{ is negative, but } \Delta H \text{ and } \Delta S \text{ are positive.}$

Solution:

$\text{For a spontaneous process, } \Delta G \text{ must be negative;} \Delta G = \Delta H - T \Delta S$ $\text{As the adsorption is exothermic and randomness of molecule (entropy) decreases.}$ $\text{Therefore, both } \Delta H \text{ and } \Delta S \text{ will be negative.}$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}